FIXED Corona v2 4GB - CR revC - Debug LED not flashing

slavik

Noob Account
Oct 22, 2013
3
0
TX Product(s) used: JR-Programmer 1.1, CoolRunner revC, 4GB QSB R/W, Corona QSB_CR_Upgrade (w/clock generator), postfix adapter v2.
Console Type: Corona v2
NAND size: 4GB
Dashboard version: 2.0.16537
CB version: 13181
Screenshot of NAND details from J-Runner:
Jrunner screenshot is attached.

J-Runner log:
Reading from E:\ to F:\J-Runner\output\nanddump1.bin
Done!
in 0:15 min:sec
E:\
Reading from E:\ to F:\J-Runner\output\nanddump2.bin
Done!
in 0:15 min:sec
Comparing...
Can't check for bad blocks. No Spare data. Possibly Corona 4GB
Can't check for bad blocks. No Spare data. Possibly Corona 4GB
Nands are the same
E:\
Reading from E:\ to F:\J-Runner\output\nanddump3.bin
Done!
in 0:15 min:sec
Comparing...
Can't check for bad blocks. No Spare data. Possibly Corona 4GB
Can't check for bad blocks. No Spare data. Possibly Corona 4GB
Nands are the same
* unpacking flash image, ....
Spare data NOT found
* found decrypted CD
* found XeLL binary, must be linked to 0x1c000000
* we found the following parts:
SMC: 2.5
CB_A: 13181
CB_B: 13181
CD (image): 13181
CD (decrypted): 9452
* checking required versions...
Failed to create ecc image
Initializing nanddump1.bin..
Corona 4GB
Nand Initialization Finished
ECC created
ECC created
ECC created
Initializing nanddump1.bin..
Corona 4GB
Nand Initialization Finished
ECC created
Writing to E:\ from F:\J-Runner\output\image_00000000.ecc
Done!
in 0:00:232 min:sec:ms
Wrong cpukey
Programming Coolrunner
F:\J-Runner\common\xsvf\corona.3_3.xsvf
USB XSVF Player Initialized
Xilinx XC2C64A-VQ44 ......... [DETECTED]
Erase Succeeded
File: F:\J-Runner\common\xsvf\corona.3_3.xsvf
Sending Out Packets .........
Success

Image of Coolrunner:
Images of close-up soldering to motherboard:
Jrunner screenshot is attached.
High resolution images of the soldering job: http://imgur.com/a/2yvyi (they are over 2MB each, so I couldn't attach them).

Description of problem:
Green (debug) LED on the Coolrunner doesn't flash at all. I am not sure if it is possible to verify correct installation of the postfix adapter (except visually). Soldering appears to be fine (using multimeter to make sure nothing weird is shorted). C2R6 and C2R7 has resistors in them.
My process:
1. read nand
2. create ecc
3. write ecc (also tried using the Corona 4GB ecc file from common/ECC/ folder)
4. unplug power from xbox, remove r/w flat cable from qsb
5. program CR with 3-3 timings, put switch to NOR after programming it
6. reconnect power to xbox
7. boot it up (debug LED doesn't flash), nothing on screen, no DHCP lease getting requested.

Was the console working before you started: Y (still works if I write the original NAND image back)

Wanted to thank BL4K3Y for giving me pointers on IRC and being patient. :)
 

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Last edited:

BrockThunderjam

VIP Member
Jun 25, 2013
1,503
88
Looks like a fake cool runner. I might be wrong but the b point is not needed to be soldered
The b point is not needed to be soldered? Are you sure about that?


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Martin C

VIP Member
Jan 10, 2004
35,981
0
Scotland, UK
www.team-xecuter.com
B is most definitely needed. It goes to the oscillator on the QSB upgrade board.

What resistance do you get from the POST_OUT pad on the POST fix QSB against GND (with the post_out wire removed)?
 

slavik

Noob Account
Oct 22, 2013
3
0
Thank you all for feedback. I will be looking to redo some of the soldering later today.

With the post_out wire removed, I get 57.3Kohm from postfix to ground.
 

Martin C

VIP Member
Jan 10, 2004
35,981
0
Scotland, UK
www.team-xecuter.com
ok - so post_out looks to be ok.

The only other thing affecting this would be the oscillator. Check the solder points on the oscillator against the QSB points (to make sure you have a good connection).
 

slavik

Noob Account
Oct 22, 2013
3
0
Sir, you are a gentleman and a scholar.

Looked up the pin diagram for the oscillator and started testing. Turns out that the ground point on the QSB was not properly soldered. Fixed that up real quick and now get Xell within a minute (the try I timed came down to 40 seconds).

For future reference, I tested the ground pin from oscillator (pin closest to B spot away from the motherboard points) to the ground point of the motherboard from behind (to make sure I wasn't bridging the bad solder point and the pad on QSB with one of the multimeter probes).

EDIT: how do I mark this thread as solved/answered?
 
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